Arnica Lake

Overview

Tucked beneath Storm Mountain near the Continental Divide, Arnica Lake is a backcountry gem reached from the Vista Lake trailhead on Highway 93 South. It’s the antithesis of Banff’s headline-grabbing lakes: quieter, wilder, and stunning—especially when the larches flame gold in September.

The Hike

The route drops first to Vista Lake, then climbs steadily through subalpine forest to Arnica Lake. Expect a well-defined but rugged trail with roots, rocks, and a sustained grade. Most hikers clock roughly 9–10 km round trip with meaningful elevation gain (plan 3–6 hours). In wet weather, sections can turn slick, and it gets muddier if you continue beyond Arnica toward Twin Lakes.

Why It’s Special

This is a multi-lake day without an epic mileage commitment. You get changing views—Vista Lake, valley peeks, and then the clear waters of Arnica ringed by forest and, in fall, golden larches. If you’ve got extra energy, continue to Twin Lakes or climb higher for bigger vistas.

Wildlife

You’re in classic Rockies habitat. Deer and birds are common, with squirrels, chipmunks and pika around talus slopes. Bears do frequent the area—carry bear spray, keep it accessible, and brush up on bear safety.

Know Before You Go

• Start at the Vista Lake parking area; there are no facilities at the lake itself.
• The trail is steep in places with plenty of roots and rocks—sturdy boots (and poles) pay off.
• You’ll have to re-ascend from Vista Lake on the way back—save some legs for the return.
• A Parks Canada pass is required to stop in the park.

Best Time to Visit

July–September offers the best footing and open views. Mid-to-late September is peak larch season and the prime time for color—but it’s the busiest, and the Vista Lake lot can overflow. Outside larch season, expect a much quieter experience. Aim for early starts, especially on weekends during fall color.